Humidifier



7, 1933. R. Q LUPLOW 1,900,453

- HUMIDIFIER Filed Aug. 26, 1931 3 Sheets-Sheet 1 Inventor 1?, C. lax Maw March 7, 1933. R. c. LUPLOW HUMIDIFIER Filed Aug. 26, 1931 3 Sheets-Sheet 2 Z CCIU/o/OW March 7, 1933.

R. C. LU PLOW HUMIDIFIER 3 Sheets-Sheet 3 Filed Aug. 26. 1931 I nvcnlor /I Home y Patented Mar. 7, 1933 RONALD c. L'UPLGW, on SELIGMAN, ARIZONA I-IUMIDIFIER Application filed August 26, 1931; Serial No. 559,554.

This invention relates to a humidifier for internal combustion motors, the general object of the invention being to provide means for introducing steam into the inlet manifold of the engine with means for automatically controlling the flow of steam into the manifold according to the speed of the en gine.

This invention also consists in certain other it features of construction and in the combination and arrangement of the several parts to be hereinafter fully described, illustrated in the accompanying drawings and specifically pointed out in the appended claim.

In describing the invention in'detall, reference will be had to the accompanying drawings wherein like characters denote like or corresponding parts throughout the several views, and in which:

Figure 1 is an elevation of parts of the inlet exhaust and carburetor of an internal combustion engine showing the invention applied thereto.

Figure 2 is a vertical sectional view through the invention.

Figure 3 is a View looking toward the left hand side of Figure 2.

Figure 4 is a view of the water tank with the'parts in section.

Figure 5 is a transverse sectional .VIGW of Figure 2 the section being taken on line 55 of Fig. 2.

Figure 6 is a section on line 6-6 of Flgure 1.

Figure 7 is a section on line 7-7 of Figure 3.

Figure 8 is a detail View of the valve for controlling the flow of vapor to the inlet 40 manifold.

In these drawings, the letter A lndicates the exhaust manifold, the letter B the 'inlet manifold, the letter C the carburetor and the letter D indicates acasing the top of which is 5 connected by the pipe 1 with the exhaust manifold and the lower part of which is connected by a pipe 2'with the exhaustpipe A of the exhaust manifold. Thus some of the exhaust gases will flow from the exhaust. manifold through'the pipe 1 into the casing B where it D and will pipe 2.

A damper 3 is located in the pipe 1 and has a slotted arm4 connected tothe end of the shaft of'the' damper and a pin 5 on a rod 6 '55 passes through the slot in the arm. This rod passes through a hole in the top of the casing D and throughja hole in the top of a casing 7 located in the casing D with its lower end. connected to a thermostat 8, of the bellows 0 type located in the casing 7 so that the expansion and contraction of the thermostat will cause the arm 6 to operate the damper 8 through the arm etand the pin 5. A coil 9 is located in the casing D and surrounds the casing 7 and hasone end connected to a coupling 10 which is connected by a tube 11 to the inlet manifold B and a needle valve 12 controls the passage of vapor through the coupling, this needle valve'being adjustably 76 pass from the casing through the connected to the rod 6 by having its threaded upper part 12' engaging a bracket 13 carried by said rod 6.

The other end. of the coil isconnected by a pipe 14 which passes through the bottom of 7's the casing D'to the top part of a tank 15 which contains water. 'A tube 16 passes through the top of the tank to a point adj acent the lower end thereof with a port 17 in the upper end ofthe tube controlled by a n3 valve 18. V

When the motor is cold the damper will be fully open as the thermostat 8 will be contracted and the needle valve 12 will be closingthe passage in the coupling 10. As soon as the motor starts 'up however the exhaust gases flowing through the casing D will heat .the casing 7 and the thermostat so that the thermostat will expand thus partly closing .Q the damper and opening the valve 12 and the so exhaust gases passing through the casing will heat the water laden air in the coil 9 so that steam will form which will pass through the coupling 10, pipe 11 into the inlet manifold A will mix with the explos'ive'mix- 9'5, 7

ture fromjthe carbureter and thus passinto the cylinders of the engine. The suotionof the piston will create avacuum in the coils i and pipe 14: so that vacuum will be created in the top. of the tank 15 whereby airwill 100 be drawn through the port 17 and tube 16 and the air will bubble up through the water in the tank. Thus the air will be charged With Water and the mixture will be carried into the coils where it will be vaporized by the products or" combustion passing through the casing D.

Thethermostat also automatically controls the damper 3 so as to regulate the amount of exhaust gases passing through the casing D for heating the mixture in the coils. As soon as the motor is stopped and has cooled, the

thermostat contracts closing the valve 12' and opening the damper 3. The adjustment of the valve 12 and the valve 18 will regulate the amount of steam passing into theinlet manifold.

It is thought from the foregoing description that the'advantages and novel features of the invention will be readily apparent.

It is to he understood that changes may be made in the construction and in the combination and arrangement of the several parts provided that such changes fall within the scope of the appended claim.

Having thus described my invention, what I claim as new is:

In combination with an internal combustion engine including its inlet and exhaust nanit'olds, a casing, a pipe connecting the top of the casing with the exhaust manifold, an exhaust pipe connected with the lower part of the casing, a damper in the first pipe, a second casing in the first casing, a thermostat therein, a rod connected with the thermo stat and passing through the two casings, one end of the rod engaging the arm of the damper, a coil in the first casing and surrounding the second casing, a pipe connecting the upper end of the coil to the intake manifold, a valve for controlling the flow of vapor through said last-mentioned pipe, means for adjustably connecting said valve to the rod, whereby said valve will be operated by a movement of the rod from the thermostat, a tank, a pipe connecting the upper end of the tank With the lower end of the coil, a pipe passing through the top of the tank to a point adjacent the lower end thereof and having a port in its upper end opening to the atmosphere, and a valve forcontrolling said port. 7

In testimony whereof I affix my signature.

RONALD C. LUPLOW. 

